1. 一般撮影の被ばく線量レベル
放射線診断 |
実効線量 [mSv] [1] |
主な被ばく臓器と臓器線量 [mGy] |
参考文献 |
頭部X線(AP) |
~0.02 |
脳 |
0.46 |
[2] |
胸部X線(Chest PA) |
0.02-0.3 |
肺 |
0.14
0.16 |
[3]
[4] |
腹部X線(AP) |
0.2-1 |
胃 |
0.23
0.43 |
[3]
[4] |
胸椎X線(AP) |
0.4-1 |
肺 |
0.46
0.79 |
[4]
[3] |
腰椎X線(AP) |
0.2-1.5 |
胃 |
0.51
1.10 |
[4]
[3] |
四肢X線(下腿AP) |
<~0.001 |
赤色骨髄 |
0.00002 |
[4] |
マンモグラフィ |
~0.4 |
乳腺(平均乳腺線量) |
1.8 |
[5] |
バリウム検査 |
~2 |
胃 |
5.1 |
[6] |
[1] UNSCEAR 2008 Report, 2008.
[2] 川浦稚代等. 人体ファントム線量測定に基づいた各種頭部X線検査における患者の臓器線量および実効線量評価. Radioisotopes
54, 55-66, 2005.
[3] 丸山隆司等. X線診断による臓器・組織線量、実効線量および集団実効線量.Radioisotopes 45, 761-773, 1996.
[4] Kawaura C et al. Organ and effective dose evaluation in diagnostic
radiology based on in-phantom dose measurements with novel photodiode-dosemeters.
Rad. Prot. Dosim. 118 421-430, 2006.
[5] 最新の国内実態調査結果に基づく診断参考レベルの設定.
http://www.radher.jp/J-RIME/report/DRLhoukokusyo.pdf
[6] Maruyama T et al. Determinations of organ or tissue doses and collective effective dose equivalent from diagnostic X ray examinations in Japan. Rad. Prot. Dosim. 43 213-216, 1992.
2. CT撮影の被ばく線量レベル
放射線診断 |
実効線量 [mSv] [1] |
主な被ばく臓器と臓器線量 [mGy] |
参考文献 |
頭部CT |
~2 |
脳 |
53.5 |
[7] |
胸部CT |
2-12 |
肺 |
20.9 |
[8] |
腹部CT |
3-1 |
胃 |
21.0 |
[9] |
骨盤CT |
6-16 |
結腸 |
19.2 |
[10] |
[1] UNSCEAR 2008 Report, 2008.
[7] Yamauchi-Kawaura C et al. Radiation dose evaluation in multidetector-row CT imaging for acute stroke with an anthropomorphic phantom. Br. J. Radiol. 83, 1029-1041, 2010.
[8] Fujii K et al. Comparative evaluation of organ and effective doses
for paediatric patients with those for adults in chest and abdominal CT
examinations. Br. J. Radiol. 80, 657–667, 2007.
[9] Nishizawa K et al. Patient dose estimation on multi-detectorrow CT
from abdomen for adult and abdomen-pelvis for child examinations. Jpn.
J. Med. Phys. 27, 153–162, 2008.
[10] Nishizawa K et al. Determinations of organ doses and effective dose
equivalents from computed tomographic examination. Br. J. Radiol. 64, 20–28,
1991.
3. 核医学検査の被ばく線量レベル
核医学検査 |
平均実効線量 [mSv] [1] |
投与量 [MBq] [11] |
主な被ばく臓器と臓器線量 [mGy] |
参考文献 |
骨シンチ
(99mTc-MDP) |
5.1 |
710 |
赤色骨髄 |
6.5 |
[12] |
心筋シンチ
(201TICI) |
46.1 |
106 |
心臓 |
20.1 |
[13] |
肺血流シンチ
(99mTc-MAA) |
4 |
220 |
肺 |
14.5 |
[12] |
肺換気シンチ
(99mTc-Technegas) |
4 |
404 |
肺 |
44.4 |
[12] |
甲状腺シンチ
(99mTc-pertechnetate) |
3.5 |
215 |
甲状腺 |
4.7 |
[12] |
[1] UNSCEAR 2008 Report, 2008.
[11] 第7回全国核医学診療実態調査報告書, Radioisotopes 62, 545-608, 2013.
[12] ICRP Publication 80 (Radiation Dose to Patients from Radiopharmaceuticals
Addendum 2 to ICRP Publication 53). Ann. ICRP 28(3), 1998.
[13] ICRP Publication 106 (Radiation Dose to Patients from Radiopharmaceuticals
Addendum 3 to ICRP Publication 53). Ann. ICRP 38(1-2), 2008.